Hinge



J. E. RABER.

HINGE.

APPLICATION FILED APR.29. 191s.

1,195,085. PatentedAug. 15,1916.

UNTTED STATES PATEN T OFFICE.

JOHN E. RABER, F CANTON, OHIG.

HINGE.

Application filed April 29, 1916.

To all whom it may concern:

Be it known that 1, JOHN E. RABER, a citizen of the United States,residing at Ganton, in the county of Stark and State of Ohio, haveinvented a new -and useful Hinge, of which the following is ispecilication.

My invention relates hinges and has more especial reference to hingesdesigned for use in connection with what is commonly known as trapdoors, such as are used for the entrances to cellars upon streets andlike places. i

The object of this invention is to provide a flush top door with hingeswhich are invisible when the door is closed.

A further object is to provide a door of this character in which it isnot necessary to cut through the door or frame to secure the hingesthereto.

A further object is to provide a door of this cha 'acter in which thehinge does not pivot upon a pin as in the usual form of hinge.

A further object is to provide a door with a slotted hinge adapted tocooperate with a pin to hold the door tightly against the frame whenshut.

A further object of my invention is to provide a hinge whereby the doornormally lies in substantially a horizontal plane or in the same planeas the street or floor within which said door is provided.

A further object is to provide means limiting the backward movement ofthe door when the same is in the opened or elevated position, at thesame time holding the door in said opened position.

A still further object is the provision of a hinge of the characterreferred to which will be kept properly lubricated at all times.

lVith these objects in view the invention consists in the novelconstruction and arrangement of parts, hereinafter described,illustrated in the accompanying drawings,

' and particularly pointed out in the append ed claims, it beingunderstood that various changes in the form, proportions, size and minordetails of construction may be made within the scope of the appendedclaims without departing from the spirit or sacrificing any of theadvantages of the inven tion.

In the accompanying drawings: Figure 1 is a perspective view showing myimproved hinge applied to .a trap door located in a pavement, one of thedoors being shown in Specification of Letters Patent.

Serial No. 94,342.

the opened position. Fig. 2 is a sectional view of a portion of a doorand door frame in the closed position showing my hinge applied thereto.Fig. 3 is a similar view showing the door in the opened position. Fig. lis a detail perspective view of one of the hinge members carried by thedoor. Fig. 5 is a. similar view of one of the hinge members carried bythe door frame. Fig. 6 is a section on the line 6-6, Fig. 3.

Similar numerals of reference indicate corresponding parts throughoutall the figures of the drawing.

In the accompanying drawings, the numeral 1 represents the door framewhich is preferably angular in cross section and provided with therectangular recesses 2 adapted to receive the hinged doors 3 when saiddoors are in the closed position. The doors 3 may be of any usual andwell known construction, being preferably rectangular in form as shownand constructed of sheets 01' plates of metal.

I The hinge members a are attached to the downwardlydepending flanges 5,at opposite extremities of the frame 1, by means of rivets or screws 6or their equivalents, notches 7 being formed in the flanges 5 toaccommodate the lubricator containing receptacle 8 of the hinge members4, said receptacle portions being cut away at 9 in order to fit snuglyagainst the frame 1. Spaced cars 10 are provided upon the attachingplate 11 of each of the hinge mem- Patented Aug. 15, 1916.

(iii

bers 41, a pin 12 connecting said spaced ears.

Hinge members 13 are attached to the doors 3 by means of bolts, rivetsor their equivalents 14, said members comprising the attaching plates 15and the curved slotted portions 16. each of said last named portionsbeing provided with the curved slot 17, a projection 18 being formed atthe free extremity of each of said curved portions. The pin 12 which iscarried between the spaced ears 1() upon the frame hinge member islocatedwithin the curved slot 17 in the adjacent door hinge member andthe curved slotted portion 16 of each of the hinge members 13 isnormally located within the lubricator containing receptacle 8 when thedoor is in the closed position as shown in Fig. 2, suitable cement 19being provided between the ed 'es of the receptacleS and the adjacentsurface of the frame 1 in order to form a liquid tight joint.

When the door is in the opened or elevated.

position as best illustrated in Fig. 3 of the drawings the pins 12engage the lower extremities of the slots 17, thereby limiting thebackward movement of the door, the rear edge of the door resting uponthe top of the frame 1 at a point beyond the recess 2 in said frame,thus leaving the recesses exposed in order that a suitable instrumentmay be used to clean any accumulation of dirt or dust out of said recesswhen the door is opened in order to guarantee a tight fit of the doorswithin the frame when they are moved to the closed position. \Vhen thedoors are in the closed position the projections 18 upon the curvedportions of the door hinge members 13 will engage the undersurface ofthe frame 1 in order to take a portion of the weight of the doors andprevent them from sagging.

By the construction above described the hinge members are locatedentirely beneath the door and below the door frame, thereby presenting asmooth and even surface when the door is closed, thus removing fromsight the hinge members and presenting a pleasing appearance. At thesame time the hinges are kept clean and free from dirt and prop erlylubricated, as they are located within the lubricating oil or greasecontained within the receptacles 8 during the time that the doors areclosed.

From an inspection of F i 2 of the drawings it will be seen that theslot 17 is so located with relation to the pin 12 that the door will beheld tightly down upon the frame by reason of its own weight and at thesame time the hinge edge of the door will be held tightly against theshoulder formed in the frame, thus preventing water from leaking throughthe joint between the door and the frame and coming into contact withthe hinges.

Owing to the laws in a number of States requiring that doors, such asthe present hinge is adapted to be used upon, must be flush with thepavement it has been found necessary to provide some form of hinge whichmay be connected upon the under face of the door in order that the hingewill form no obstruction upon the upper surface of the door, but in thehinges at present in use for this purpose it has been found necessary tocut out a portion of the door and casing in order to attach the hingethereto. I/Vith the present construction the hinge is located entirelybeneath the door, it not being necessary to cut away any portion of thedoor to attach the hinge thus not only producing a door having noobstruction upon its upper face but also making a more finishedconstruction and pleasing appearance.

Although the drawings and above specification disclose the best mode inwhich I have contemplated embodying my invention I desire to be notlimited to the details of such disclosure, for, in the further practicalapplication of my invention, many changes in form and construction maybe made, as cir cumstances require or experience suggests, withoutdeparting from the spirit of the invention, within the scope of theappended claims.

I claim:

1. A hinge adapted to be'used upon a door, comprising spaced earsattached to the door frame, and disposed outwardly therefrom a pinconnectingsaid spaced cars, a curved member connected; to the door, saidcurved member provided with a curved slot, said pin being locatedthrough the slot in said curved member and a projection formed upon saidcurved member and adapted to contact with the under surface of the doorframe when the door is in the closed position.

2. A hinge adapted to be used upon a door, comprising spaced earsattached to the door frame, a pin connecting said spaced ears, a curvedmember connected to the door, said curved member provided with a curvedslot, said pin being located through the slot in said curved member anda lubricator container connected to the frame and adapted to receivesaid curved member when the door is in the closed position.

3. A hinge adapted to be used upon a door, comprising attaching platesconnected to the door frame, spaced ears provided upon each of saidattaching plates, a pin connecting each pair of spaced ears and alubricating receptacle provided upon each of said attaching plates,curved members connected to the door, said curved members provided withcurved slots, said pins being located through the slots in said curvedmembers, said curved members being arranged to be located within saidlubricator receptacles when the door is in the closed position.

4. A hinge adapted to be used upon a door, comprising spaced earsattached to the door frame, a pin connecting said spaced ears and acurved member connected to the door, said curved member provided with acurved slot, said pin being located through the slot in said curvedmember, said curved slot being so shaped that when the door is closedthe curved member will ride upon said pin bringing the hinge edge of thedoor into snug engagement with the door frame.

In testimony that I claim the above, I have hereunto subscribed my name.

JOHN E. RABER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

